From 706752d6b974eed2ebed6c81dfa68c34b601e8bd Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Tue, 15 Aug 2023 19:08:37 +0200
Subject: [PATCH] kernel: Return SIGPIPE/EPIPE when writing to a pipe with no
 more readers

---
 kernel/src/fs/Pipe.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/src/fs/Pipe.cpp b/kernel/src/fs/Pipe.cpp
index d55707de..ff9f8384 100644
--- a/kernel/src/fs/Pipe.cpp
+++ b/kernel/src/fs/Pipe.cpp
@@ -44,7 +44,11 @@ Result<usize> Pipe::read(u8* buf, usize, usize length)
 
 Result<usize> Pipe::write(const u8* buf, usize, usize length)
 {
-    if (!m_reader) return length;
+    if (!m_reader)
+    {
+        Scheduler::current()->send_signal(SIGPIPE);
+        return err(EPIPE);
+    }
 
     u8* slice = TRY(m_data_buffer.slice_at_end(length));
     memcpy(slice, buf, length);